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Cheap flights from Seattle to Ireland from €222

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Ireland departing on 25/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Lufthansa Logo
10:55 - 08:10
SEA
-
DUB
13h 15m1 stop
Lufthansa Logo
05:00 - 12:10
DUB
-
SEA
15h 10m1 stop
€374Lufthansa
Tue, 17 Feb - Thu, 26 Feb
Icelandair Logo
15:35 - 10:15
SEA
-
DUB
11h 40m1 stop
Icelandair Logo
14:15 - 20:40
DUB
-
SEA
14h 25m1 stop
€378Icelandair
Tue, 17 Mar - Tue, 14 Apr
British Airways Logo
18:50 - 19:40
SEA
-
DUB
16h 50m1 stop
British Airways Logo
08:50 - 17:55
DUB
-
SEA
16h 05m1 stop
€394British Airways
Sun, 1 Mar - Wed, 11 Mar
American Airlines Logo
20:20 - 20:35
SEA
-
SNN
16h 15m1 stop
American Airlines Logo
07:40 - 23:05
SNN
-
SEA
23h 25m2 stops
€450American Airlines
Tue, 14 Apr - Sat, 25 Apr
American Airlines Logo
13:33 - 16:10
SEA
-
SNN
18h 37m2 stops
American Airlines Logo
07:40 - 23:05
SNN
-
SEA
23h 25m2 stops
€453American Airlines
Tue, 14 Apr - Sat, 25 Apr
Multiple Airlines Logo
08:00 - 19:50
SEA
-
ORK
27h 50m2 stops
Multiple Airlines Logo
17:05 - 12:20
ORK
-
SEA
27h 15m1 stop
€543Multiple Airlines
Fri, 10 Apr - Thu, 16 Apr
Multiple Airlines Logo
08:00 - 15:10
SEA
-
ORK
23h 10m2 stops
Multiple Airlines Logo
17:05 - 21:51
ORK
-
SEA
36h 46m2 stops
€548Multiple Airlines
Fri, 10 Apr - Thu, 16 Apr
Air Canada Logo
05:50 - 16:45
SEA
-
SNN
26h 55m2 stops
Air Canada Logo
07:50 - 09:15
SNN
-
SEA
33h 25m2 stops
€568Air Canada
Wed, 4 Feb - Sun, 8 Feb
British Airways Logo
17:45 - 11:30
SEA
-
SNN
33h 45m2 stops
British Airways Logo
20:05 - 16:55
SNN
-
SEA
28h 50m1 stop
€570British Airways
Wed, 4 Feb - Sun, 8 Feb
Air Canada Logo
05:50 - 15:25
SEA
-
ORK
25h 35m2 stops
Air Canada Logo
11:55 - 09:15
ORK
-
SEA
29h 20m2 stops
€696Air Canada
Wed, 4 Feb - Sun, 8 Feb

Air Canada flights from Seattle to Ireland

Our best Air Canada deals on Seattle to Ireland flight tickets
Air Canada
16 Feb
SEA20:00Seattle/Tacoma Intl
27h 10m
2 stops
DUB07:10Dublin
4 Mar
DUB09:00Dublin
32h 31m
2 stops
SEA09:31Seattle/Tacoma Intl
€394
Find similar
Air Canada
6 May
SEA05:40Seattle/Tacoma Intl
18h 35m
2 stops
DUB08:15Dublin
13 May
DUB09:50Dublin
12h 30m
1 stop
SEA14:20Seattle/Tacoma Intl
€414
Find similar
Air Canada
1 Mar
SEA05:50Seattle/Tacoma Intl
17h 20m
2 stops
DUB07:10Dublin
11 Mar
DUB08:00Dublin
42h 16m
2 stops
SEA19:16Seattle/Tacoma Intl
€416
Find similar

United Airlines flights from Seattle to Ireland

Our best United Airlines deals on Seattle to Ireland flight tickets
United Airlines
26 Apr
SEA14:24Seattle/Tacoma Intl
35h 21m
1 stop
DUB09:45Dublin
6 May
DUB09:50Dublin
31h 25m
1 stop
SEA09:15Seattle/Tacoma Intl
€402
Find similar
United Airlines
4 Mar
SEA12:43Seattle/Tacoma Intl
13h 12m
1 stop
DUB09:55Dublin
7 Apr
DUB09:50Dublin
38h 47m
2 stops
SEA16:37Seattle/Tacoma Intl
€407
Find similar
United Airlines
26 Apr
SEA14:24Seattle/Tacoma Intl
35h 21m
1 stop
DUB09:45Dublin
14 May
DUB09:50Dublin
32h 30m
1 stop
SEA10:20Seattle/Tacoma Intl
€425
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Seattle to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 25 December 2025.
Use the filters below to find and compare flights from Seattle to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 17/2

10:55-08:10

1 stop13h 15m

Dublin

Thu 26/2

05:00-12:10

1 stop15h 10m

€374

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 17/3

15:35-10:15

1 stop11h 40m

Dublin

Tue 14/4

14:15-20:40

1 stop14h 25m

€378

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 1/3

18:50-19:40

1 stop16h 50m

Dublin

Wed 11/3

08:50-17:55

1 stop16h 05m

€394

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 14/4

20:20-20:35

1 stop16h 15m

Shannon

Sat 25/4

07:40-23:05

2 stops23h 25m

€450

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 14/4

13:33-16:10

2 stops18h 37m

Shannon

Sat 25/4

07:40-23:05

2 stops23h 25m

€453

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Fri 10/4

08:00-19:50

2 stops27h 50m

Cork

Thu 16/4

17:05-12:20

1 stop27h 15m

€543

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Fri 10/4

08:00-15:10

2 stops23h 10m

Cork

Thu 16/4

17:05-21:51

2 stops36h 46m

€548

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 4/2

05:50-16:45

2 stops26h 55m

Shannon

Sun 8/2

07:50-09:15

2 stops33h 25m

€568

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 4/2

17:45-11:30

2 stops33h 45m

Shannon

Sun 8/2

20:05-16:55

1 stop28h 50m

€570

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Wed 4/2

05:50-15:25

2 stops25h 35m

Cork

Sun 8/2

11:55-09:15

2 stops29h 20m

€696

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ireland from

How to get the cheapest flight ticket from Seattle to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

The month of January is another great option to travel to Ireland, with average flight prices from Seattle averaging around €461.

What is the cheapest Seattle/Tacoma Intl to Ireland flight route?

Fly from Seattle/Tacoma Intl to Dublin for the best Seattle/Tacoma Intl - Ireland flight prices

How far in advance should I book a flight to Ireland?

You are more likely to see cheaper flights to Ireland from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €557 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Seattle for as low as €504 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Ireland flights?

There is only 1 cabin class available to choose from on Seattle/Tacoma Intl to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Ireland flights?

You could potentially save up to 25% on your flight if you consider stops on a Seattle to Ireland flight.

Cheap Seattle to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Ireland

Fastest flight time

9h 00m

Direct flights

Every day

Airports in Ireland

77 airports
The fastest flight from Seattle to Ireland takes 9h 00m
Direct flights go from Seattle to Ireland every day.
There are 77 airports in Ireland. From Seattle there are direct flights to Dublin (DUB).
Search flight deals

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ireland?

    Prices for flights from Seattle/Tacoma Intl Airport to Ireland are updated daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ireland?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Ireland?

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Ireland for you.

Can I find flights from Seattle to Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ireland from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Ireland?

momondo helps you find the best flight between Seattle and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Ireland right now. Can momondo alert me if prices change?

Price alerts on flights to Ireland from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom €36
Flights to Corkfrom €87
Flights to Shannon, Clarefrom €89
Flights to Donegalfrom €77
Flights to Milltown (Kerry)from €38